Hydracore kernel discussion thread

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sswagonman

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Nov 6, 2011
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OK guys we seem to be cluttering up the dev thread with idle chitchat and rubbish. Lets move all that here and clean it before the mods have to. If u have a question just ask and I am sure someone else will be running that rom ad can help.

Full credits to Gavin for this fantastic kernel

Link to kernel thread http://forum.xda-developers.com/showthread.php?p=28245219



Press thanx if u find this helpfull
Sent from my GT-N7000 using Tapatalk 2

PS people please don't clog the thread with quadrant scores as they really do not mean anything with the devices we use now. Just another way of saying I can fry my phone faster or my Willy is bigger than yours. Thanx
 
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decat

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Dec 31, 2010
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I was looking for this thread just now, was running the latest PA JB rom but it wasn't butter smooth... untill I flashed this kernel.
Damn, it's like having a new phone, unbelievable how it changed the responiveness of my Note.
Great work!
 
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lebaron90

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May 17, 2012
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First of all, wonderfull kernel. It rocks on stock rom LRK. Really the best kernel I've ever tested. Thank you very much g.lewarne for sharing your work with us.

But I have one question, maybe someone can explain this:

I don't really understand what does Voltgroups are used for. I mean what is the difference between groups ? Is there a better group for overclocking, such things...

Thanks
 
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rraaka

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Sep 8, 2010
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OK guys we seem to be cluttering up the dev thread with idle chitchat and rubbish. Lets move all that here and clean it before the mods have to. If u have a question just ask and I am sure someone else will be running that rom ad can help.

Full credits to Gavin for this fantastic kernel



Press thanx if u find this helpfull
Sent from my GT-N7000 using Tapatalk 2
thanks swagonman., just what we needed

maybe we can include a link to the main thread in the OP and a note on where the devlopment stands , latest version / known bugs etc ?
 

TempusFudgeIt

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Feb 18, 2012
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First of all, wonderfull kernel. It rocks on stock rom LRK. Really the best kernel I've ever tested. Thank you very much g.lewarne for sharing your work with us.

But I have one question, maybe someone can explain this:

I don't really understand what does Voltgroups are used for. I mean what is the difference between groups ? Is there a better group for overclocking, such things...

Thanks
From what I recall in the original thread, Gavin explained there are three voltage groups A, B and C. There is only one on your Note, and it is dependent on the hardware of the phone. I have B which seems to be relatively stable (hope I don't jinx myself). You cannot change the voltage group.

Gavin used this information to set voltages for each CPU by gathering info from many users in each group. Some groups require higher minimum voltage than others.

If you search the HydraCore development thread and look at the first three or four posts that match you should find Gavin's very good explanation - he is a great explainer. :good:
 

simplelife

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Jul 6, 2012
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OK guys we seem to be cluttering up the dev thread with idle chitchat and rubbish. Lets move all that here and clean it before the mods have to. If u have a question just ask and I am sure someone else will be running that rom ad can help.

Full credits to Gavin for this fantastic kernel

Link to kernel thread http://forum.xda-developers.com/showthread.php?p=28245219



Press thanx if u find this helpfull
Sent from my GT-N7000 using Tapatalk 2
This was great idea,thanks...:good:
 

g.lewarne

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May 13, 2009
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From what I recall in the original thread, Gavin explained there are three voltage groups A, B and C. There is only one on your Note, and it is dependent on the hardware of the phone. I have B which seems to be relatively stable (hope I don't jinx myself). You cannot change the voltage group.

Gavin used this information to set voltages for each CPU by gathering info from many users in each group. Some groups require higher minimum voltage than others.

If you search the HydraCore development thread and look at the first three or four posts that match you should find Gavin's very good explanation - he is a great explainer. :good:
precisely correct!

Each Note seems to contain one of 3 motherboard / cpu revisions. The kernel is able to detect which version is present, and selects the appropriate cpu voltage table for it. As Tempus said, you cannot change voltage groups, the information is there simply to aid myself in voltage adjustments.

Originally it was implemented so I could gather stability reports from many users with different versions. Since I have a Group B i was only ever able to test voltages for Group B phones. Once we knew thow the groups worked, other users were then able to experiment with Tegrak overclock is finding the lowest stable voltages, and over time i built up a pretty good spreadsheet of voltage groups / frequencies and stable minimum voltages.

I then simply increased the average minimum voltages a little (for stability) and put the tables in the kernel.

Since then, there isnt an awful lot of need for knowing the voltage groups, but its a neat little feature so i kept it

:good:

It does have perhaps one useful feature for the users, if you do as stated in my Kernel thread OP and install STD first (as this will work for everyone) you can determine the likelyhood of you being able to run the OC/UV kernel

If you have a Group A it is unlikely the OC kernel will work stably for you (but it does for some)
If you have a Group B it is highly likely that the OC kernel will work for you without stablilty issues
If you have a Group C is is almost guranteed than you can run OC without any problems

anagin, each phone is different and ymmv
 
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lebaron90

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May 17, 2012
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From what I recall in the original thread, Gavin explained there are three voltage groups A, B and C. There is only one on your Note, and it is dependent on the hardware of the phone. I have B which seems to be relatively stable (hope I don't jinx myself). You cannot change the voltage group.

Gavin used this information to set voltages for each CPU by gathering info from many users in each group. Some groups require higher minimum voltage than others.

If you search the HydraCore development thread and look at the first three or four posts that match you should find Gavin's very good explanation - he is a great explainer. :good:
Thansk for the answer.

In fact, I've searched the Hydracore thread and even the whole forum but I didn't manage to find something really clear about these volt groups.

I figure that the lower voltage the hardware needs, the better it will be for overclocking but I don't know wich group needs less or higher voltage. In fact is it worth or not to use the OC version with for example group A, or it isn't because the CPU overheat and slow down frequency by itself.

Edit: just saw you response Gavin, thanks for the explanation. So, to conclude, for common user like me, if the kernel is working without problems or FC, I don't really have to bother much about these groups
 
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g.lewarne

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May 13, 2009
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Thansk for the answer.

In fact, I've searched the Hydracore thread and even the whole forum but I didn't manage to find something really clear about these volt groups.

I figure that the lower voltage the hardware needs, the better it will be for overclocking but I don't know wich group needs less or higher voltage. In fact is it worth or not to use the OC version with for example group A, or it isn't because the CPU overheat and slow down frequency by itself.

Edit: just saw you response Gavin, thanks for the explanation. So, to conclude, for common user like me, if the kernel is working without, I don't really have to bother much about these groups
lol we keep typi8ng at the same time

Yeah dont worry about the voltage groups if kernel running fine.
 

g.lewarne

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Whts the best governer settings gavin?

Im using lulzactive with noop

Wht u suggest ?

Swyped From My AOKP JB.

why is lulzactive so popular?

To answer your question the best governors and schedulers are the kernel defaults

OnDemand and Noop.

OnDemand is a tuned version, and for me gives the best battery life and real world performance

I would also rate governors as such

OnDemand > PegasusQ > Adaptive > Everything else

and schedulers

Noop > SIO > Deadline > Everything else
 

sswagonman

Senior Member
Nov 6, 2011
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Whts the best governer settings gavin?

Im using lulzactive with noop

Wht u suggest ?

Swyped From My AOKP JB.
I use lulzactive and vr. Vr can b a bit harsh sometimes and give reboobs (TM chasmodo) so sio is another good option with lulzactive

Really the best thing to do is try different combinations till u find what u r looking for
Sent from my GT-N7000 using Tapatalk 2
 
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xranekx

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Dec 13, 2009
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I get around 3hr of screen time mostly web browsing and regular social stuf with std hydracore... what about you guys ?!

Sent from my JB Note using xda app-developers app
 
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